What are the correct parameters for using the OpenOffice report designer using an online instance?

I'm using Version 7.saas~3 but continually receive "connection denied". I've tried the guidance as per a variety of similar questions (including https://www.odoo.com/forum/help-1/question/openerp-online-what-are-the-parameters-for-the-report-designer-or-the-thunderbird-plugin-4900) but this has not worked.